JB Performance replacement impeller CW fits Vortech V4 J trim


V impeller J CW


Exact fit JB Performance direct fit replacement clockwise billet J trim style impeller.  The blades must curve in a clockwise pattern.

Direct Fit for the following Vortech Superchargers:

  • Vortech V4 J trim.

If you are unsure of your fitment, measure the inducer (intake) side of the impeller blade diameter. It should be right around 3.45″ or 87mm.


J trim, stock cast impeller:

  • 1600 CFM.
  • 1100 HP.
  • 58,000 maximum RPM.
  • 72% efficient.
  • Balanced by grinding, clipping, sanding, drilling.
  • Weight: xxx ounces.

JB Performance billet impeller:

  • 1750 CFM.
  • 1225 HP
  • 62,000 maximum RPM.
  • 75% efficient.
  • Direct fit with no machine work.
  • Narrower center section.
  • A2000 Alcoa Aluminum for stronger blade support.
  • Thinner blade design to allow more air to pass through same pocket size.
  • 10mm larger exducer diameter by using patented flared tip.
  • Digitally designed and tested by a company that specializes in improved air flow designs.
  • CNC balanced. by removing specific material with a cutting tool in the precise area.
  • Crack checked with X-ray technology.
  • Weight: 11.8 ounces.
  • 3 year warranty against blade failure when installed by JB Performance with a full rebuild. requires the supercharger RPM to not be exceeded as published here.

Want to save even more? Trade in your un-damaged J trim impeller for $100 at any time.

Additional information

Weight 2.5 lbs
Dimensions 12 × 12 × 12 in


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